20078960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22817}}^1$

素因数の和:22841

約数の個数: 40

約数和(自身を含む): 50929776

約数和(自身を除く): 30850816

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22817, 45634, 91268, 114085, 182536, 228170, 250987, 365072, 456340, 501974, 912680, 1003948, 1254935, 1825360, 2007896, 2509870, 4015792, 5019740, 10039480, 20078960]

約数ペア:

[(1, 20078960), (2, 10039480), (4, 5019740), (5, 4015792), (8, 2509870), (10, 2007896), (11, 1825360), (16, 1254935), (20, 1003948), (22, 912680), (40, 501974), (44, 456340), (55, 365072), (80, 250987), (88, 228170), (110, 182536), (176, 114085), (220, 91268), (440, 45634), (880, 22817)]